Well-drilling machine.



G. D. LOOMIS.

WELL DRILLING MACHINE.

APPLIUATIQN FILED FEB; 24,1909.

948,425. Patented Feb. 8, 1910.

Q Vi I u uses GEORGE DUDLEY LOOIVIIS, OF TIFFIN, OHIO.

WELL-DRILLING- MACHINE.

Specification of Letters Patent.

Patented Feb. 8, 1910.

Application filed February 24, 1909. Serial No. 479,781.

I To all whom at may concern: j

Be it known that I, GEORGE D. LooMis, a i citizen of the United States,residing at Tiflin, in the county of Seneca and State of Ohio, haveinvented a new and useful Vell- Drilling Machine, of which the followingis a specification.

This invention relates more 11 articularly to the spudding beam of awell-drilling machine, and has for its object to provide a structurewhich will permit the use of a wire cable in connection therewith.

In the operation of spudding, when a wire instead of a manila cable isused, the impact of the tool against the bottom of the bore hole reactson the machine, and the consequent jar and shock is liable to injure thesame; and it is to take up this jar and shock that the present inventionis designed, the same consisting in a novel connection between thespudding beam and the pulley at the working end of said beam over whichthe spudding cable passes.

The invention is illustrated in the accompanying drawing in which-Figure l is an elevation showing its application. Fig. 2 is an end view.

Referring specifically to the drawings, 5 denotes the spudding beam, ofwhich the working end only is shown, said beam being operated in theordinary manner, which is immaterial to the present invention. I haveshown the beam provided with a tee iron 6 on its under side, and spacedtherefrom to form a slot in which works a roller mounted on a crank pincarried by a crank 7 on the bull wheel shaft 8. In the revolution of thecrank, the roller travels back and forth in the slot, and swings thespudding beam up and down on its pivot. Any other suitable mechanism maybe provided for operating the spudding beam.

At 9 is indicated the pulley around which the spudding cable 10 passes.As already stated, this is a wire cable, and as such a cable jars themachine from the impact of the tool with the bottom of the bore hole, Iprovide a novel form of support for the pulley, said support beingyieldingly mounted on the spudding beam so as to take up all jars andshocks. The aforesaid support for the pulley 9 comprises a yoke 11 whichstraddles the spudding beam 5 adjacent to the outer end thereof. Theconnection between the yoke and the beam is made by a bolt 12 passingtransversely through the branches of the yoke and through the beam.

In the branches of the yoke are slots 13 through which this bolt passes,which permits longitudinal movement of the yoke to the extent of thelength of said slots. The connection herein described is also such a onethat the yoke is pivoted to the beam. Between the inner end of the yoke11, and the under side of the spudding beam 5 is located a coiled springlet, said spring being secured in any suitable manner to prevent itsdropping from the yoke. The purpose of this spring is to yieldinglyoppose the hereindescribed longitudinal movement of the yoke in onedirection. From the yoke depends a stem 15 to which is connected one endof a spring 16, the other end of said spring fastened to a bracket 17secured to the tee iron 6. The last mentioned spring opposes theswinging movement of the yoke in one direction, to wit, in a directionaway from the cable 10.

In practice, when the jar due to the impact of the tool is transmittedto the pulley 9, the yoke 11 moves longitudinally a short distanceagainst the tension of the spring 14, the jar being thus taken up orrelieved thereby. If, from the weight of the tool, the jar is sufiicientto swing the yoke on its pivot, the spring 16 takes up the same, andprevents the pulley from swinging back too far on the spudding beam. ,Byadjusting the spring 16 so that it connects with the stem 15 atdifferent points, greater or less tension can be applied as the weightof the tool increases or diminishes. For this purpose the stem isprovided with a plurality of openings 18.

The device herein described is very simple in construction, and can bereadily applied to any ordinary spudding beam, no specially constructedbeam being necessary. The beam may also be operated in the ordinarymanner.

lVhat is claimed is:

1. The combination with a spudding beam, of a yoke between the branchesof which the beam extends, means for connecting the yoke to the beam,said connection being a Y loose one to permit longitudinal movement ofthe yoke, a pulley carried by the yoke, and resilient means opposing theaforesaid movement of the yoke in one direction.

2. The combination with a spudding beam, of a yoke between the branchesof which the said beam is received, said yoke being slotted lengthwise,a connection between the yoke and the beam passing through the slots ofthe former, a pulley carried by the yoke, and a spring interposedbetween the inner end of the yoke and the beam.

The combination with a spudding beam, of a yoke between the branches ofwhich said beam is received, said yoke being slotted lengthwise, aconnection between the yoke and the beam passing through the slots ofthe former, a pulley carried by the yoke, a spring interposed betweenthe inner end of the yoke and the beam, a stem projecting from the yoke,and a spring connected at its ends to the said stem and to the spuddingbeam, respectively.

4. The combination with a spudding beam and a pulley, of a support forthe pulley pivotally mounted on the beam and movable i lengthwise,resilient means opposing the lengthwise movement of the support in onedirection, and resilient means opposing the swing of the support on itspivot in one direction.

The combination with a spudding beam, of a yoke pivotally mountedthereon and movable lengthwise, a pulley carried by the yoke, resilientmeans opposing the lengthwise movement of the yoke in one direction,

and resilient means opposing the swing of the yoke on its pivot in onedirection.

In testimony that I claim the foregoing as my own, I have hereto afiixedmy signa ture in the presence of two witnesses.

GEORGE DUDLEY LOOMIS.

\Vitnesses V. J. JACKMAN,

L. A. SMITH.

